title: Is Pain Intensity Really That Important to Assess in Chronic Pain Patients? A Study Based on the Swedish Quality Registry for Pain Rehabilitation (SQRP).
abstract: Incorporating the patient's view on care and treatment has become increasingly important for health care. Patients describe the variety of consequences of their chronic pain conditions as significant pain intensity, depression, and anxiety. We hypothesised that intensities of common symptoms in chronic pain conditions carry important information that can be used to identify clinically relevant subgroups. This study has three aims: 1) to determine the importance of different symptoms with respect to participation and ill-health; 2) to identify subgroups based on data concerning important symptoms; and 3) to determine the secondary consequences for the identified subgroups with respect to participation and health factors.
  
  
  
  This study is based on a cohort of patients referred to a multidisciplinary pain centre at a university hospital (n = 4645, participation rate 88%) in Sweden. The patients answered a number of questionnaires concerning symptoms, participation, and health aspects as a part of the Swedish Quality Registry for Pain Rehabilitation (SQRP).
  
  
  
  Common symptoms (such as pain intensity, depression, and anxiety) in patients with chronic pain showed great variability across subjects and 60% of the cohort had normal values with respect to depressive and anxiety symptoms. Pain intensity more than psychological symptoms showed stronger relationships with participation and health. It was possible to identify subgroups based on pain intensity, depression, and anxiety. With respect to participation and health, high depressive symptomatology had greater negative consequences than high anxiety.
  
  
  
  Common symptoms (such as pain intensity and depressive and anxiety symptoms) in chronic pain conditions carry important information that can be used to identify clinically relevant subgroups.
authors.affiliation: Rehabilitation Medicine, Department of Medicine and Health Sciences (IMH), Faculty of Health Sciences, University of Linköping, Linköping, Sweden.
authors.forename: Maria
authors.initials: M
authors.lastname: Bromley Milton
authors.forename: Björn
authors.initials: B
authors.lastname: Börsbo
authors.forename: Graciela
authors.initials: G
authors.lastname: Rovner
authors.forename: Asa
authors.initials: A
authors.lastname: Lundgren-Nilsson
authors.forename: Katharina
authors.initials: K
authors.lastname: Stibrant-Sunnerhagen
authors.forename: Björn
authors.initials: B
authors.lastname: Gerdle
mesh_terms: D000328:Adult; D001007:Anxiety / Q000209:etiology / Q000503:physiopathology / Q000523:psychology; D059350:Chronic Pain / Q000150:complications / Q000503:physiopathology* / Q000523:psychology; D003863:Depression / Q000209:etiology / Q000503:physiopathology / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D012042:Registries; D011795:Surveys and Questionnaires; D013548:Sweden